Don't leave home without it

CaptionSock liners

Eric Boyd / LAT

Sock liners Yes, you need to put socks under your socks. And at mile 20 you'll be thankful for these thin, 100% polypropylene liners, which drastically reduce the friction that can lead to blisters. These liners are made by Wigwam. $5. www.wigwam.com

Sock liners Yes, you need to put socks under your socks. And at mile 20 you'll be thankful for these thin, 100% polypropylene liners, which drastically reduce the friction that can lead to blisters. These liners are made by Wigwam. $5. www.wigwam.com (Eric Boyd / LAT)